The MTI 317-351-30 FRIC THIMBLE from Field Tool Supply is a specialized tool designed for precise measurement in various applications. This thimble features a friction design that ensures accurate readings and ease of use. Constructed from high-quality materials, it offers durability and reliability in demanding environments. The thimble is compatible with a range of measuring instruments, making it versatile for different tasks. Its compact size allows for easy handling, making it an essential tool for machinists and quality assurance professionals seeking precision in their measurements.